EP 0226849 A2 19870701 - Process for forming color image.
Title (en)
Process for forming color image.
Title (de)
Verfahren zur Herstellung eines Farbbildes.
Title (fr)
Procédé de préparation d'une image en couleur.
Publication
Application
Priority
- JP 24271286 A 19861013
- JP 26412585 A 19851125
Abstract (en)
A process for forming a color image is disclosed, comprising developing a silver halide photographic material using a developer containing an aromatic primary amine in the presence of at least one couplers represented by the following formulae (I) and (II): <CHEM> wherein R1 represents an alkyl group, an aryl group, or a heterocyclic group; R2 represents a hydrogen atom or a substituent group; and X represents a hydrogen atom or a coupling split-off group: <CHEM> wherein R1 and X have the same meanings as in the formula (I), respectively; and R'2 represents an alkyl group, an aryl group, an alkylthio group, an arylthio group, or a heterocyclic thio group. According to the process of the invention, sensitivity, gradation (gamma) and color density of the developed image are improved.
IPC 1-7
IPC 8 full level
G03C 7/305 (2006.01); G03C 7/38 (2006.01)
CPC (source: EP)
G03C 7/30529 (2013.01); G03C 7/3835 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0226849 A2 19870701; EP 0226849 A3 19880907; EP 0226849 B1 19910814; DE 3680887 D1 19910919
DOCDB simple family (application)
EP 86116345 A 19861125; DE 3680887 T 19861125